java工具类中获取properties文件的属性

记录获取properties文件属性的工具类

package org.jasig.cas.mylogin.util;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;
import java.util.Properties;

/**
 * Desc:properties文件获取工具类
 */
public class PropertyUtil {
    private static final Logger logger = LoggerFactory.getLogger(PropertyUtil.class);
    private static Properties props;
    static{
        loadProps();
    }

    synchronized static private void loadProps(){
        props = new Properties();
        InputStream in = null;
        try {
        	//
            in = PropertyUtil.class.getClassLoader().getResourceAsStream("config.properties");
            props.load(in);
        } catch (FileNotFoundException e) {
            logger.error("config.properties文件未找到");
        } catch (IOException e) {
            logger.error("出现IOException");
        } finally {
            try {
                if(null != in) {
                    in.close();
                }
            } catch (IOException e) {
                logger.error("config.properties文件流关闭出现异常");
            }
        }
        logger.info("加载properties文件内容完成...........");
        logger.info("properties文件内容：" + props);
    }

    public static String getProperty(String key){
        if(null == props) {
            loadProps();
        }
        return props.getProperty(key);
    }

    public static String getProperty(String key, String defaultValue) {
        if(null == props) {
            loadProps();
        }
        return props.getProperty(key, defaultValue);
    }
}

PropertyUtil propertyUtil = new PropertyUtil();
String  s = propertyUtil.getProperty("dabaseAuthentication")；//获取你要的属性的值,s = false
String  ss = propertyUtil.getProperty("Authentication")；//获取你要的属性的值,ss = true

src/main/resources/config.properties

Authentication = true
dabaseAuthentication = false